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x86: mrccache: Add more debugging

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When the MRC cache fails to save it is useful to have some debugging info
to indicate what when wrong. Add some more debug() calls.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2019-04-25 21:58:59 -06:00 • committed by Bin Meng
parent 9a67994e01
commit 079b38ba04
1 changed files with 12 additions and 4 deletions
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16
arch/x86/lib/mrccache.c
View file

@ -113,8 +113,10 @@ int mrccache_update(struct udevice *sf, struct mrc_region *entry,
ulong base_addr; ulong base_addr;
int ret; int ret;
if (!is_mrc_cache(cur)) if (!is_mrc_cache(cur)) {
debug("%s: Cache data not valid\n", __func__);
return -EINVAL; return -EINVAL;
}
/* Find the last used block */ /* Find the last used block */
base_addr = entry->base + entry->offset; base_addr = entry->base + entry->offset;
@ -205,17 +207,23 @@ int mrccache_get_region(struct udevice **devp, struct mrc_region *entry)
return -ENOENT; return -ENOENT;
} }
if (fdtdec_get_int_array(blob, node, "memory-map", reg, 2)) if (fdtdec_get_int_array(blob, node, "memory-map", reg, 2)) {
debug("%s: Cannot find memory map\n", __func__);
return -EINVAL; return -EINVAL;
}
entry->base = reg[0]; entry->base = reg[0];
/* Find the place where we put the MRC cache */ /* Find the place where we put the MRC cache */
mrc_node = fdt_subnode_offset(blob, node, "rw-mrc-cache"); mrc_node = fdt_subnode_offset(blob, node, "rw-mrc-cache");
if (mrc_node < 0) if (mrc_node < 0) {
debug("%s: Cannot find node\n", __func__);
return -EPERM; return -EPERM;
}
if (fdtdec_get_int_array(blob, mrc_node, "reg", reg, 2)) if (fdtdec_get_int_array(blob, mrc_node, "reg", reg, 2)) {
debug("%s: Cannot find address\n", __func__);
return -EINVAL; return -EINVAL;
}
entry->offset = reg[0]; entry->offset = reg[0];
entry->length = reg[1]; entry->length = reg[1];